From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-iy0-f171.google.com (mail-iy0-f171.google.com [209.85.210.171]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 70EA920016F for ; Thu, 23 Jun 2011 15:42:43 -0700 (PDT) Received: by iyi12 with SMTP id 12so3034948iyi.16 for ; Thu, 23 Jun 2011 16:10:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=U46KD7j48qcQEmQK7Rj+ldTl0H3UfbrE2XfHzrLCTmM=; b=LH1RaR6x/Y43gLLI+TuYlPemExTWYHFMxIbchPjSWc8XxQlVwc+Dqpr5piq6+fDOKM JEmZ4mKfNbb0m3ErV5Yb3hk9mdsOgFwYe/zfB+jfvGpcl12yBhoTuMgzL46HwfsWLxZO jciYZSnn9GtYXNw7LPNZlUPcVWSUQtiIs1gpo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=CCnLkrfijgpp19ZlaQL/2LsTae9EIZEm/jBK8CeatI1rqVftAwcrbnLgKq7W0ahgQ6 Y2h95w//dDR2NqSyRQyH/i8A2ead77zPw9byGhZpCmNPnLFuxpHnd+IC4JOb8Pawsg5W YIwiP3QfrD50bFnBeFEneFlD5T2tZ7XEa7uzY= MIME-Version: 1.0 Received: by 10.231.68.202 with SMTP id w10mr2168025ibi.63.1308870625044; Thu, 23 Jun 2011 16:10:25 -0700 (PDT) Received: by 10.231.13.76 with HTTP; Thu, 23 Jun 2011 16:10:25 -0700 (PDT) In-Reply-To: <7ir56kupy8.fsf@lanthane.pps.jussieu.fr> References: <7ir56kupy8.fsf@lanthane.pps.jussieu.fr> Date: Thu, 23 Jun 2011 17:10:25 -0600 Message-ID: From: Dave Taht To: Juliusz Chroboczek Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: bloat Subject: Re: [Bloat] Some updates on hacking on AQMS X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Jun 2011 22:42:43 -0000 On Thu, Jun 23, 2011 at 4:45 PM, Juliusz Chroboczek wr= ote: >> It really seems that ECN support could be added generically for all >> qdiscs that currently do packet drop. Creating a generic mark_or_drop >> function is easy. > > As hinted in a previous message -- please don't. =A0Every qdisc must be > examined individually to check if it is suitable for ECN. > > Consider also the following. =A0If the administrator specifies a maximum > rate of 100 Mbit/s, he probably doesn't expect the outgoing traffic to > exceed that rate under any circumstances. =A0If you start marking instead > of dropping, you must make sure that the resulting traffic is still > under 100 Mbit/s, including the marked packets. In designing this particular concept I made sure that was an option, in the mildly recorrected: http://www.bufferbloat.net/projects/bloat/wiki/Save_the_Ants Try harder to not shoot the ants, but make ecn marking a first class option throughout the qdiscs... if possible.. > > -- Juliusz > --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://the-edge.blogspot.com